Spatial band-pass filtering aids decoding musical genres from auditory cortex 7T fMRI

Sengupta, Ayan, Pollmann, Stefan and Hanke, Michael (2018) Spatial band-pass filtering aids decoding musical genres from auditory cortex 7T fMRI. F1000Research, 7 . p. 142. ISSN 2046-1402

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Spatial filtering strategies, combined with multivariate decoding analysis of BOLD images, have been used to investigate the nature of the neural signal underlying the discriminability of brain activity patterns evoked by sensory stimulation – primarily in the visual cortex. Previous research indicates that such signals are spatially broadband in nature, and are not primarily comprised of fine-grained activation patterns. However, it is unclear whether this is a general property of the BOLD signal, or whether it is specific to the details of employed analyses and stimuli. Here we applied an analysis strategy from a previous study on decoding visual orientation from V1 to publicly available, high-resolution 7T fMRI on the response BOLD response to musical genres in primary auditory cortex. The results show that the pattern of decoding accuracies with respect to different types and levels of spatial filtering is comparable to that obtained from V1, despite considerable differences in the respective cortical circuitry.

Item Type: Article
Additional Information: Version 1 have been published 2 February 2018:
Schools/Departments: University of Nottingham, UK > Faculty of Science > School of Physics and Astronomy
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Depositing User: Eprints, Support
Date Deposited: 20 Apr 2018 12:36
Last Modified: 21 Apr 2018 10:16

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